Is the reflectivity measurement the only caracterisation by which one can judge how well the silicon surface texturization for solar cells?
Ultimately the only real test is a solar cell measurement to capture the impact on efficiency. The main contributors are reflection - lower is better; passivation - lower j0 is better; and contact resistance of metal contacts to the textured Si - lower rho_c is better.
Dear Trad khodja Abdallah ,
welcome!
I would like to agree with Manuel Schnabel .
The texturization function is to reduce the reflection coefficient. So, the smaller reflection coefficient the better is the texturing.
However texturing affects the surface flatness and the surface recombination velocity. So, it may also affect the contact resistance to the top metal electrode.
It can also affect the dark current and the the photocurrent to some extent.
As the surface recombination velocity decreases which means better passivated surface it will lead to smaller dark current and larger photocurrent.
Best wishes
Dear Manuel Schnabel , Abdelhalim abdelnaby Zekry , Hadi Jabbar Alagealy Thanks for this valuable answer.
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